US5611290A - Waste conveyor - Google Patents

Waste conveyor Download PDF

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Publication number
US5611290A
US5611290A US08/597,243 US59724396A US5611290A US 5611290 A US5611290 A US 5611290A US 59724396 A US59724396 A US 59724396A US 5611290 A US5611290 A US 5611290A
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US
United States
Prior art keywords
worm
shaft
disposed
conveyor
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/597,243
Other languages
English (en)
Inventor
Herbert Tratz
Karl May
Hartmut Herm
Karlheinz Unverzagt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HERM, HARTMUT, MAY, KARL, TRATZ, HERBERT, UNVERZAGT, KARLHEINZ
Application granted granted Critical
Publication of US5611290A publication Critical patent/US5611290A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B1/00—Retorts
    • C10B1/10—Rotary retorts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/12—Waste feed arrangements using conveyors
    • F23G2205/121—Screw conveyor

Definitions

  • the invention relates to a waste conveyor, in which a feed shaft is connected to a conveyor channel and a worm is disposed in the longitudinal direction of the conveyor channel.
  • the waste conveyor is used for thermal waste disposal, especially according to the low-temperature carbonization combustion process.
  • the system for thermal waste disposal according to the low-temperature carbonization combustion process includes a pyrolysis reactor and a high-temperature combustion chamber.
  • the pyrolysis reactor converts waste which is fed through a waste conveyor of the type referred to at the outset, into low-temperature carbonization gas and pyrolysis residue.
  • the low-temperature carbonization gas and the pyrolysis residue are then delivered, after suitable preparation, to a burner of a high-temperature combustion chamber. That produces molten slag, which can be removed through an outlet and which is in vitrified form after it cools down.
  • the flue gas which is produced is sent through a flue gas line to a chimney serving as an outlet.
  • a waste heat steam generator acting as a cooling device, a dust filter system, and a flue gas cleaning system, in particular, are built into the flue gas line.
  • a gas compressor which is disposed directly at the outlet of the flue gas cleaning system and may be constructed as a suction blower, is also located in the flue gas line.
  • the built-in gas compressor serves to transport gas through the system and in particular to maintain a negative pressure, however slight, in the pyrolysis drum. That negative pressure prevents low-temperature carbonization gas from escaping to the outside environment through ring seals of the pyrolysis drum.
  • the waste conveyor can be blocked or impeded, if excessively large particles of waste fall from the feed shaft into the worm.
  • the waste is comminuted beforehand.
  • the portion of the coil that is rotating just below the feed shaft it is possible for the portion of the coil that is rotating just below the feed shaft to already be filled up to a certain level, so that a waste particle, such as a piece of wood falling in, cannot slide any farther inward and jam at the corner of the feed shaft.
  • a waste conveyor comprising a conveyor channel having a longitudinal direction and a portion; a feed shaft connected to the conveyor channel; a worm being disposed in the longitudinal direction of the conveyor channel, the worm having a shaft with an axis and having a portion with an edge; a first metal cutter being disposed at the edge of the portion of the worm, being curved relative to the axis of the shaft and having a given radius of curvature; and a second metal cutter being disposed at the portion of the conveyor channel, being curved relative to the axis of the shaft and having a radius of curvature being greater than the given radius of curvature; the two metal cutters being disposed side by side and approximately concentric to the shaft, at a predetermined rotary position of the worm.
  • the first metal cutter serves to cut off or shear off a waste particle that has fallen in at the corner of the feed shaft, for instance. Therefore, the first metal cutter can also be called a cutting edge or cutting device. Since a portion of the conveyor channel is provided with a second metal cutter, the two metal cutters act like a pair of scissors upon rotation of the shaft of the worm. In other words, they shear apart or break off the waste particle that has fallen in. In this way, blockage-free operation is assured.
  • the metal cutters are flat iron bars or profiled iron bars.
  • the metal cutters are formed of a wear-resistant steel, in order to attain a high cutting action and a long service life.
  • the feed shaft and the conveyor channel define a rear corner region therebetween, as seen in a conveying direction, and the second metal cutter is disposed in the rear corner region.
  • the conveyor channel is n-sided, where n is a number greater than or equal to 4.
  • At least one of the metal cutters is curved over approximately 180° relative to the axis of the worm.
  • a pyrolysis reactor to which the conveyor channel is connected.
  • FIG. 1 is a diagrammatic, longitudinal-sectional view of a waste conveyor
  • FIG. 2 is a cross-sectional view of a worm with a cutting device, which is taken along a line II--II of FIG. 1, in the direction of the arrows.
  • FIG. 1 there is seen a shaft 2 of a worm or worm coil 4 of a waste conveyor, which is driven by a motor 8 through a gear 6.
  • the worm 4 is disposed longitudinally of a stationary trough, worm trough or conveyor channel 10.
  • this conveyor channel 10 is especially connected to a pyrolysis reactor 12 of a low-temperature carbonization combustion system.
  • a feed shaft 14 for waste A leads laterally into the conveyor channel 10.
  • the conveyor channel 10 is preferably constructed to be n-sided, where n is a number equal to or greater than 4.
  • the conveyor channel 10 is constructed to be octagonal, which can be seen particularly in FIG. 2.
  • the waste A is conveyed by the worm 4 from left to right to the pyrolysis reactor 12. It is assumed in FIG. 1 that a relatively large waste particle 16 has become jammed at a right corner of the feed shaft 14, between the feed shaft and the worm 4.
  • a first and a second metal cutter 20 and 22 are provided. In any case these two metal cutters 20, 22 are disposed side by side in a certain rotary position of the shaft 2.
  • the first metal cutter 20 is located at an edge of a portion of the worm 4.
  • the first metal cutter 20 is formed of a flat metal strip, or flat iron or bar for short, which is curved by about 180° relative to the shaft 2.
  • the first metal cutter 20 protrudes somewhat past the edge of the worm 4.
  • the first metal cutter 20 is located in the vicinity of a rear corner 24 between the feed shaft 14 and the conveyor channel 10, wherein the term rear is defined in terms of the conveying direction.
  • the second metal cutter 22 is disposed at a portion of the conveyor channel 10 and it is especially located in this case at the right inner corner 24 of the feed shaft 14.
  • This second metal cutter 22 is also constructed as a flat iron or bar.
  • both metal cutters 20, 22 are made from a high-strength steel.
  • the flat iron bar 22 is also curved and it has a somewhat larger radius of curvature than the first-mentioned flat iron bar 20.
  • the second metal cutter 22 is also curved by about 180° relative to the axis of the shaft 2 of the worm 4. It can be seen from FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Screw Conveyors (AREA)
  • Refuse Collection And Transfer (AREA)
  • Processing Of Solid Wastes (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Coke Industry (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Belt Conveyors (AREA)
  • Fodder In General (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Fish Paste Products (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Gasification And Melting Of Waste (AREA)
US08/597,243 1993-08-06 1996-02-06 Waste conveyor Expired - Fee Related US5611290A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4326483.2 1993-08-06
DE4326483A DE4326483A1 (de) 1993-08-06 1993-08-06 Abfall-Transporteinrichtung

Publications (1)

Publication Number Publication Date
US5611290A true US5611290A (en) 1997-03-18

Family

ID=6494628

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/597,243 Expired - Fee Related US5611290A (en) 1993-08-06 1996-02-06 Waste conveyor

Country Status (16)

Country Link
US (1) US5611290A (fr)
EP (1) EP0712433B1 (fr)
JP (1) JP2810237B2 (fr)
KR (1) KR100305332B1 (fr)
CN (1) CN1130396A (fr)
AT (1) ATE146815T1 (fr)
CA (1) CA2168735A1 (fr)
CZ (1) CZ31596A3 (fr)
DE (2) DE4326483A1 (fr)
DK (1) DK0712433T3 (fr)
ES (1) ES2096478T3 (fr)
HU (1) HU218072B (fr)
PL (1) PL312781A1 (fr)
RU (1) RU2102305C1 (fr)
SK (1) SK15996A3 (fr)
WO (1) WO1995004793A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806441A (en) * 1996-02-08 1998-09-15 Chung; Yong-Jae Automatic carbon black discharging device in waste tire decomposing apparatus
US6247662B1 (en) * 1996-09-05 2001-06-19 Robin Hamilton Compaction methods and apparatus
US10160605B1 (en) * 2018-02-23 2018-12-25 Laidig Systems, Inc. Oscillating auger support

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700653C1 (de) 1997-01-10 1998-04-02 Siemens Ag Einfüllvorrichtung für Abfall und Verfahren zur Beschickung einer Kammer oder einer Fördereinrichtung mit Abfall
DE19728719C1 (de) * 1997-07-04 1998-10-22 Siemens Ag Transporteinrichtung für Abfall und Verfahren zu ihrem Betrieb
EP1217318A1 (fr) * 2000-12-19 2002-06-26 Sea Marconi Technologies Di Wander Tumiatti S.A.S. Installation pour le traitement thermique d'un matériau et procédé pour son fonctionnement
CN1289392C (zh) 2001-07-30 2006-12-13 三菱麻铁里亚尔株式会社 微粒碳化钨粉末的制造方法及粉末
CN100532941C (zh) * 2007-07-19 2009-08-26 重庆科技学院 均匀布料装置
DE102009026895B4 (de) * 2009-06-10 2012-04-19 Heinz Bergmann Maschine für die Abfallwirtschaft e.K. Vorrichtung zur Erzeugung brennbarer Gase aus organischen Stoffen
FI122102B (fi) * 2010-02-12 2011-08-31 Maricap Oy Menetelmä ja laitteisto materiaalin käsittelemiseksi pneumaattisessa putkikuljetusjärjestelmässä
CN101850894A (zh) * 2010-05-28 2010-10-06 大亚科技股份有限公司 一种纤维板生产中esb输送系统
DE102011051066A1 (de) * 2011-06-15 2012-12-20 Wincor Nixdorf International Gmbh Vorrichtung zum Entwerten von Gebinden
CN107461750A (zh) * 2017-08-10 2017-12-12 北京亚高科能源科技有限公司 进料装置
CN107514639B (zh) * 2017-08-10 2019-03-26 北京一亚高科能源科技有限公司 导流式进料装置
CZ308497B6 (cs) 2019-07-07 2020-09-23 First Point a.s. Směs pro tepelně izolační omítku
CN111977279A (zh) * 2020-08-12 2020-11-24 陈小玲 一种刀具覆土烧刃用的泥浆均匀输送设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1787671A (en) * 1928-11-02 1931-01-06 Clare R Daniels Fuel-deflector attachment
US2542476A (en) * 1947-04-07 1951-02-20 Fred L Carlson Grain cone
US3337026A (en) * 1962-11-14 1967-08-22 American Factors Ass Ltd Scroll conveyor
FR2404520A1 (fr) * 1977-09-28 1979-04-27 Glomera Holding Ag Matiere agglomeree servant de combustible, procede et presse pour fabriquer cette matiere agglomeree
US4504222A (en) * 1983-09-13 1985-03-12 Jude Engineering, Inc. Screw conveyer and furnace
DE3830153A1 (de) * 1988-09-05 1990-03-15 Siemens Ag Pyrolysereaktor mit indirekter und direkter beheizung
EP0302310B1 (fr) * 1987-08-03 1990-08-29 Siemens Aktiengesellschaft Procédé et dispositif pour l'élimination thermique de déchets

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262173B (de) * 1967-07-01 1968-03-07 Keller Peukert Ges Mit Beschra Einrichtung zur Zerkleinerung und Foerderung von Muell
US4076133A (en) * 1975-11-26 1978-02-28 Weaver Richard L Silo unloader blades
SE424628B (sv) * 1977-02-22 1982-08-02 Asea Ab Spantransportor
GB2118508B (en) * 1982-04-21 1985-07-10 Raywell Process Plants Limited Scraper blade-fitted screw conveyor
SU1357424A1 (ru) * 1986-01-20 1987-12-07 Ленинградская лесотехническая академия им.С.М.Кирова Газификатор
DE8901206U1 (de) * 1989-02-03 1989-03-23 IGS Dosiertechnik Schmittinger Handels- und Vertriebs GmbH, 86459 Gessertshausen Schneckenförderer
SU1638084A1 (ru) * 1989-03-27 1991-03-30 Московский Институт Химического Машиностроения Винтовой конвейер

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1787671A (en) * 1928-11-02 1931-01-06 Clare R Daniels Fuel-deflector attachment
US2542476A (en) * 1947-04-07 1951-02-20 Fred L Carlson Grain cone
US3337026A (en) * 1962-11-14 1967-08-22 American Factors Ass Ltd Scroll conveyor
FR2404520A1 (fr) * 1977-09-28 1979-04-27 Glomera Holding Ag Matiere agglomeree servant de combustible, procede et presse pour fabriquer cette matiere agglomeree
US4504222A (en) * 1983-09-13 1985-03-12 Jude Engineering, Inc. Screw conveyer and furnace
EP0302310B1 (fr) * 1987-08-03 1990-08-29 Siemens Aktiengesellschaft Procédé et dispositif pour l'élimination thermique de déchets
DE3830153A1 (de) * 1988-09-05 1990-03-15 Siemens Ag Pyrolysereaktor mit indirekter und direkter beheizung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806441A (en) * 1996-02-08 1998-09-15 Chung; Yong-Jae Automatic carbon black discharging device in waste tire decomposing apparatus
US6247662B1 (en) * 1996-09-05 2001-06-19 Robin Hamilton Compaction methods and apparatus
US6505550B2 (en) 1996-09-05 2003-01-14 Robin Hamilton Compaction methods and apparatus
US10160605B1 (en) * 2018-02-23 2018-12-25 Laidig Systems, Inc. Oscillating auger support
WO2019164811A1 (fr) * 2018-02-23 2019-08-29 Laidig Systems, Inc. Support de tarière oscillant

Also Published As

Publication number Publication date
RU2102305C1 (ru) 1998-01-20
CZ31596A3 (en) 1996-05-15
JPH08507998A (ja) 1996-08-27
WO1995004793A1 (fr) 1995-02-16
CN1130396A (zh) 1996-09-04
EP0712433A1 (fr) 1996-05-22
JP2810237B2 (ja) 1998-10-15
CA2168735A1 (fr) 1995-02-16
DK0712433T3 (da) 1997-06-23
HU9600257D0 (en) 1996-04-29
KR100305332B1 (ko) 2001-11-22
HU218072B (hu) 2000-05-28
DE4326483A1 (de) 1995-02-09
HUT77545A (hu) 1998-05-28
ES2096478T3 (es) 1997-03-01
ATE146815T1 (de) 1997-01-15
PL312781A1 (en) 1996-05-13
DE59401426D1 (de) 1997-02-06
SK15996A3 (en) 1996-06-05
EP0712433B1 (fr) 1996-12-27

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AS Assignment

Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TRATZ, HERBERT;MAY, KARL;HERM, HARTMUT;AND OTHERS;REEL/FRAME:008284/0829

Effective date: 19960216

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Effective date: 20010318

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362